A synergistic damage-mechanics analysis of transverse cracking in [+/-theta/90(4)](s) laminates

Authors
Varna, J Joffe, R Talreja, R
Citation
J. Varna et al., A synergistic damage-mechanics analysis of transverse cracking in [+/-theta/90(4)](s) laminates, COMP SCI T, 61(5), 2001, pp. 657-665
Citations number
26
Categorie Soggetti
Material Science & Engineering
Journal title
COMPOSITES SCIENCE AND TECHNOLOGY
ISSN journal
02663538 → ACNP
Volume
61
Issue
5
Year of publication
2001
Pages
657 - 665
Database
ISI
SICI code
0266-3538(2001)61:5<657:ASDAOT>2.0.ZU;2-W
Abstract
The deformational response of [+/- theta /90(4)](s) laminates under longitu dinal tensile loading is treated by a synergistic approach that combines co ntinuum damage mechanics (CDM) and micromechanics. The constraint of theta degrees plies on transverse cracks in 90 degrees plies is represented by a crack-opening displacement (COD) parameter in the CDM model and is expresse d in terms of the ply properties and ply thickness ratios on the basis of a finite-element calculation. A methodology is proposed for predicting the l aminate stiffness variations with crack density and applied strain (or stre ss) for various values of ply orientation B and is found to give good resul ts. (C) 2001 Elsevier Science Ltd. All rights reserved.